Linear slot diffuser for ceiling or wall installation

Special profile diffuser blade creates a Coanda effect which enables wide range or air flow rates

Supply in one or two directions

The product can handle high airflow rates with low noise level

Ceiling or wall installation, suitable also for continuous "wall to wall" installations

Adjustable throw pattern, flexibility of orientation with different configurations

Detachable diffuser allows cleaning of the terminal unit and ductwork

Accessories

Plenum with a circular duct connection(s) D160...250mm with rubber gasket

Plenum options with measurement and adjustment functions

Sound insulation for plenum

Halton-brand ceiling diffuser, type Halton SLM, with one to four slots, suitable for variable airflow

Excellent Coanda effect provided with a wide range of airflow rates.

Each air pattern adjustment section shall comprise two flow deflection vanes. The supply air pattern is directable by adjusting the flow deflection vanes without any change in the appearance of the diffuser.

The linear slot diffuser has an extruded aluminium outer frame, flow deflection vanes and T- profiles, and be anodised or polyester-painted to white (RAL 9010) colour.

The diffuser is connected to the ductwork using a plenum with mineral wool as sound attenuation material.

The removable linear slot diffuser is mounted into the plenum with invisible screws. The plenum comprises an airflow measurement and adjustment module.

The linear diffuser is removable in order to provide access to the measurement and adjustment module in the plenum. Flow deflection vanes and T-profiles are easily removable for access to the plenum.

Supply air is supplied through the linear slots of the diffuser horizontally along the ceiling surface or vertically into the occupied zone. For wall installation, the plane jet air is supplied horizontally or directed to the ceiling surface, which increases the throw length.

For an exhaust application, the diffuser is supplied without flow control vanes.

The Halton SLM linear slot diffuser is connected directly to the Halton PLM or Halton PMM plenum. The plenum is installed into the suspended ceiling with M8 drop rods (not included in the delivery) and connected to the ductwork.

Remove the T-profiles of the Halton SLM by pulling them gently, in order to access the transversal bars located behind the profiles. Fit the installation brackets into the grooves of the plenum and secure with the screws supplied with the unit. Put screws into the holes of the transversal bars. Screw on until the diffuser is flush to the ceiling. Replace the T-profiles.

The unit can be installed without plenum using the staff brackets. Those pieces are available as accessory (2 by slad or by linear meter).

String course mounting

The maximum length is 2000 mm. So when length is superior to 2000 mm, it is necessary to place side by side several pieces. Some alignement guides are given in order to make the the mounting easier.

The air pattern can be changed through 180° by adjusting the flow deflection vanes using a screwdriver. Each deflection vane section can be individually adjusted without removing the T-profiles in order to provide flexibility in supply air pattern orientation. Diffusers are delivered unadjusted with the flow deflection vanes in the open position.

To aid in adjusting and measuring the airflow rate, it is recommended that the diffuser is connected to a plenum equipped with a MSM. The supply airflow is determined by measuring the pressure difference with a measurement module. Measure the differential pressure with a manometer. The airflow rate is calculated according to the following formula:

∆Pm Measured pressure [Pa]k Factor given as a function of mounting and diameterQv Airflow rate [l/s]

The k factor for installations with different safety distances (distance of other items from the MSM):

Safety distance

NS

> 6xD

min 3xD

160

19

22

200

49

32

250

51

51

Adjust the airflow rate by rotating the control spindle until the desired setting is achieved. Lock the damper in position with a screw. Replace the tubes and spindle in the plenum, and return the linear diffuser to its position.

Remove the T-profiles. Remove the linear diffuser by unscrewing the screws of the transversal bars. Clean the parts by wiping them with a damp cloth. Push the linear diffuser back into place by screwing the transversal bars to the installation brackets.

Remove the measurement and adjustment module by gently pulling the shaft; (not the control spindle or measurement tubes!). Wipe the parts with a damp cloth, instead of immersing in water. Reassemble the measurement and adjustment module by pushing the shaft back into place until the module meets the stopper. Push the linear diffuser back into place by screwing the transversal bars to the installation brackets.

Halton-brand ceiling diffuser, type SLM, with one to four slots, suitable for variable airflow

Excellent Coanda effect provided with a wide range of airflow rates.

Each air pattern adjustment section shall comprise two flow deflection vanes. The supply air pattern is directable by adjusting the flow deflection vanes without any change in the appearance of the diffuser.

The linear slot diffuser has an extruded aluminium outer frame, flow deflection vanes and T- profiles, and be anodised or polyester-painted to white (RAL 9010) colour.

The diffuser is connected to the ductwork using a plenum with mineral wool as sound attenuation material.

The removable linear slot diffuser is mounted into the plenum with invisible screws. The plenum comprises an airflow measurement and adjustment module.

The linear diffuser is removable in order to provide access to the measurement and adjustment module in the plenum. Flow deflection vanes and T-profiles are easily removable for access to the plenum.

Halton is passionate about indoor environments. We offer business-enhancing products, systems, and services for comfortable, energy-efficient, and safe environments to customers who value people's wellbeing. Halton is involved from target-setting to facility use and focuses on creating positive indoor environment experiences for people.